Window construction.



G. H. FORSYTH. WINDOW CONSTRUCTION.

APPLICATION HLED'JULY 22,1907.

Patented Feb. 3, 1914.

UNiTED sra'insaainnr ormoni GEORGE H. roRsY'rH. or Yomcaofo, ILLI'NoisQ.

. N WINDOW' This invention relates to window construetioiis, and has for its main object to pro vide means, preferably automatic, for insur-4 ing close and substantiallylair vand dustproof Contact between the window closure, which may hea 'plateof glassa curtain of metal or any other suitable material, 'and its guide, which means may be capable lof retraction out of substantial:frictional hold-l,

ing engagement with saidl plate or curtain when the latter is' to be raisedor lowered;

In the preferred arid ymost complete form of the invention, I provide'retra'ctal'ile means for engaging the marginal portions'offthe plate or curtain laterally and also retractable means for engaging said plate or curtain ion its edges; although ,it should be underSt-odthat either engaging means may be used'alqne to effect the object of the invention. The immediate contacting surfaces engaging the plate are preferably yieldable, consisting of suchm'aterial as felt, leather, or other suitable materials, or a spring substance, such as rubber or elastic metal, which will readily adapt itself to variations inltlie platewith respect 4both to thickness and also to variations from 'the/ true plane of the plate and preferablywitliout seratchin the latter. These contacting devicesare a so preferably rendered detachable from the main backing strips to operate to bring them into contact with the plate.

The contacting strips also, aside from producing a snug and 'practical'vair' and dustproof guide for the plate, 'alsooperateauto-- matically to adjust the plate to variations in its guide or guides.A

My invention also furtherincludes a novel device for procuring tight and dust-ex ludrk ing engagement between the lower horizontal margin of the plate 'and tliewiiidow opening closed thereby, said mean." comprising a member having telescopic engagement .with the lower margin .of I the plate and means for normally forcing ,said telescoping` member into snug engagement'witlithesill of .the Window opening'.` Further means for excluding air' and dust mayy alsojbe` lein- I l Specification of Letters Patent. Appii'aaon fue@ Jui'yea i907.' semi negamos. I

`Ifreely?"admit therebetween themas-e i CONSTRUCTION.

ployed, consisting of rotate blc g-nieinber,l which may he mounted along the top asl Vwell as the bottom of the plate, and which is so mounted as to be capable 'of outward 60 and yinward bodily movement relative to the plato. lrefeiahly this rotatable member isA pivotally mounted at Aits ends in inclined guides'which, cooperating with theaction of gravity, normally-tend to.hold the mem 6,5 her ln snug Contact Withltlie platefalong the i' c horizontal margin thereof;

Another feature of. the invention resides.

in theprorision ota hollow postv ,constitub ,ing an element of .the casing and guide, y70, within which hollow post partsjofK the' actu.,4 vating mechanism of theengagmg devices? of the `plate are housed.r

4My invention and the novel operativev i. .principle thereof, willbe readily'understood .75 when considered in connection with the ac i leompanying drawings illustrating .a ine-` ehanial embodiment ,of `lrthe saine, in a which-.

A l |`igure l is anvelevational View in vertical. y

transverse section through tlie-plate and sealing roller andin similar vertical section in another plane .through the plate guide., Fig. 2 is a cross'sectional view onthe offset line 2;-2 of Fig. 1, looking downwardly, and ,35, 1

showing the guide and plate-engaging parts Y in full. Fig. 3 isa vertical section on the line 3.3 of Fig. 2., Figa is a detail vertical Asection through one of 'the friction strips andI itsbacking strip illustratino the means 90.-A

Ofanmmtjng the former .on the latter; Fig. 5 is airedge view of the partssliown atthe Jlower endy of Fig. 1.,Fig. 6 is aperspeotive detail illustrating the manner of mounting thenishing Strip yon the lower horizontal Hedge of the plate. ylFigf? isa view similar to vFig. 4,"sliowing a modified form of plate.

contacting spring... 1 y 3,. Y

Referring to the drawings, lOl-designates a portion of an yupright frame member, such 10ok as an I-beam of a wall structure such., `for instance, as the `side wall of a railway car,

to which is fitted a shallow channel-shaped Upright l1, the members 10 and 1l ytogether constituting a hollowja-mb-post 'forming one 105.

side of a window or asimilar opening.l To the outer, face of the member 1,1` issecured,

as'by screws 12, av pairfof upright guide-v strips 13 together forming ahollow guide,

the adjacei'it innerfinargins offthel guide. V11o rai-.enten nel); 3,191,451 j 'Y i tion o1 a plate. Ply-which may be' a plain plate of glass, or a plate or curtain of metal or other` material, or any other analogous member designed to close the opening. lVithn the hollow `guide formed' by the guide-strips 13 are located, on opposite sides of the plate 14, a pair of backing strips 15, herein shown as of narrow channel ferm with their closed edgeslying inwardlyor toward the plate 14. Secured to said closed edges of the backing strips 15 are a plair of contact strips, which I so term by reason of the fact that they constitute the immediate contacting members for the opposite sides of the plate 14. Each of these contact strips, in the form shown in Figs. 1 and 2,.consists of a narrow upright strip 16 surroupded by a tube or covering 17 of yieldin or'rflexible material, such as felt, leather, ru ber, or the like, this latter directly engaging the side of the plate adjacent to its margin, as shown in Fig. 2. The contact strips may be secured to the backing strips by any suitable means, a convenient method for this purpose consisting in cutting and displacing from the strip 16 an outwardly extending curved tongue 16 (Fig. 4) projecting the same through the slot 15 formed in the transverse wall of the backing strip 15, and securing the same by means of a cross-pin 18 extending between the sidewalls of the backing strip. This pin 18 may be headed into the outer wall of the backing strip, the contact of said outer wall with the guidestrp 13 confining the same against displacement, and this `construction permitting ready removal of the pins 18 when worn or broken.

The backing strips 15 are thus supported by one or more pairs of inclined links 19, which latter are bent to a substantially U-shape at their outer ends and at their inner lower ends are pivoted to the member 11, as shown at 20. Pins 21extending transversely through the backing strips 15 and the U--shaped ends of the links 19 constitute thc means for supporting said backing strips from said links. The lower ends of the backing strips 15 are transversely connected by a horizontal piece 23 through the agency of laterally projecting pins 24 in the strips 15 engaging horizontal slots 25 in the piece 23; this form of connection perxnitting the requisite lat-eral movement of the backing strips k15 in operation. The strips 1'5 arc normally pressed upwardly by aA compressing spring 26 rest-ing on a fixed stop 27 secured to the member 11 and at its upper end thrusting against a horizontally projecting central ledge or shoulder 23 of the piece 23. This ledge or shoulderis apen tured to receive a headed pin 28 that extends downwardly through thevspring 26 and stop 27 and has la pin-and-slot connection shown at 29 with a lever 30. pivoted yat 31 to fa ited Locaal? ency of the spring 26 is to force the baelg- 7- ingl strips 15 upwardly, and the connection 'of the latter through the inclined links 19 with the fixed pivots 20 lying inwardly of said backing strips imparts to said strips a tendency to move inwardly, thereby causing .the contact strips to closely hug the sides of the plate 14. A downward pushing on the thumb-bolt 32 overcomes the spring 26, draws the backing and contact strips downwardly and, by reason of the inclined connecting links, also imparts a simultaneous outward or releasing movement to said strips, thereby freeing the plate from the frictional engagement of said strips and allowing it to be readily raised and lowered.

In association with the foregoing mechanism I also preferably provide a similarly acting device for effecting a snug contact with the edge of the plate 14. The device herein shown for this purpose consists of a vertical transversely disposed strip 35 disposed within the hollow guide, its marginal portions conveniently passing through the U-shaped ends of the links 19, for which purpose the said strip 35 is transversely 100 slotted at 35a for the passage of the pins 21, said slots permitting the necessary lateralA play' of. said pins in the operation of the backing strips 15 and also forming the means of supporting the strip 35 on said 105 pins so as to effect vertical up and down movements of the strip 35 synchronously' with said movements of the backing strips 15. The outer face of the backingv strip 35 is provided with a relatively or contact strip 36 of similar material to that of t-he contact strips 17 and adapted for direct engagement with the edge of the plate 14. The bodily lateral movement of the strips 35 and 36 toward and from the edge 11.3

of the plate 14 is conveniently effected by means of operating cam inclines, one of which may be formed by punching from the metal of the strip 35 an inclined rear prole/ction 35b the outer surface of which slid- 120 ingly engages a correspondingly inclined stop 37 secured to the jamb-postimember 11. The direction of these coperating inclined or 'cam surfaces is such; that ',ftheupward strips 35 and 36 toward and i'ntirring tact with the ed e of the plate 14. Wh A they i strips 15 are1 awndownivardl ,.atheupf i130 narrow Vfacing thrust imparted to the backing strip 35 `from 1,25 the spring 26 by virtue oftheconnection off, said strip with the pinsl2L tends toforce' the inserz ward thrust ot'sp'riiig 26 en the strip 35 is intermitted, and consequently the pressure of the contact strip BG iipon the edge ot' the plate is likewise relieved.v It Vwill alsobe observed tliatby virtue of 'thedescribed con` struction, and irrespective o f,` tlie manually operated i'cleasfi gvnieaiis, a vdownwaiid vpull o ii the'fplate tends toautoina" -l i the laterally acting Contact,

of tl i lownwa rd pnll'thireon Lyeenltiiip then rictionaifengagement. with the plate inciii'ied supporting links. f p y 'In Fig. i" l' have illustrateda modified form oticontact-strip which may be substif. x w s tutee ior either or hein or" the strips it, 17

and 36; the same consisting simply ot a suitably bent bowjsprmg l7=L that may le.

secured to its hacking. member 'in the maisL Iier and by"themeaiisalready "descr connetionwi'tli"the strip 16 said st pli having a rear 'portion 17h provided with backivaidly pressed lips l17?' projecting through the slots 15a ot the backingstrip ,1.5,

or similar slots forined'inthe. backing strip 3G and confined by pins 18a.

The' lower `horiaontal edge ofthe plate l4 is preferably'equipped with afinishing 'or 3Q that inlay conveniently be f fand provided .nii-h pieee'lll.J To accommodate the lift- 39, the reentfrant` channel portionl 3S of .the barl 23S is cut out to an extent. e'qiiivalent'- to the` area of the lower portion of .the lit. This construction enables the" lift `to embrace the lower edge of the plate, thus,giving itia strong hold upon the latter.

In the lower openedge of the transverse finishing or reinforcing bar 3S, I preferably ita telescoping weather strip 42, the same being confined with capacity for sniiicient `vertical. movementl to eliect this purpose by means of transverse pins 43, and normally pressed downwardlyy by nie-ans of internal compression'springs 44, the lower edge of said Weather strip being' in shape to contorni to the slant or inclination, if such there be, of the sill The pins 43 not only serve te confine the weather strip, but also rigidly spacel the sides of the inishing strip 38 and prevent. the latter from spreading.

As a further means ot' guarding the lower edge o the plate. against the entraiice of dust` cold air, and the like, I also preferably employ a .guard in thi` nature of a rotatable cylinder 45, the end piiitles of which are mounted in inclined slotted bearings 45a and the Qiitwardthi-ustinlbiirtcdb5 libell,

I .hug the. sides and edge of said plate, and,` In anually operable means for overcomingy formed in the end wallof a covering box orM housing 46 on the sill, whereby the rolls orv cylinders normally tend by gravity-to hug l the lower edge of they finishing strip 38. Said'rol'ls or cylinders might be mount-ed on 70 p the iinishing strip and are preferably surfaced with a yielding material, such as cloth, leather, rubber, or the like, indicated at 45a. The' same device may, of course, be applied to the lupper edge of the plate to guard the f g5 latter, if desired. y, y l claim: v c

l.I The combination with al window` cas ing, of a plate therefor, aY pair of contact strips adapted to have bodilyl movement gg. ward vand trom the opposite feces of said plate, resilient nteanr normally keeping said Y 'contact strips in engagement with said'f. plate, and means for releasing said contact i stripsj whereby the platefinay beraisedfand 3.5

lowered, respectively.

2. The combination 1with a windoivcas ing,- of a plate therefor,v a ,contacty strip adapted tohave bodily movement toward,-

. and from the `face of said-plate, another cpntact stripadapted to have `bodilyv movement', toward fand `from an edge of -said plate, and common means for actuatingfsaid contact strips. Y'

3. The combination with window? cas-S5 4inggfof a plate therefor, a' pair of ,Contact strips adapted to have bodily movement to;` ward and from the opposite faces lof said plate, a Contact strip adapted to have bodily oyeni'enttoward and from anj edge of said 100 plate, and common means for actuating all of said contact strips. i 4. The combination with awindowcasing having a hollow guide, of a plate haviitg-4 a margin projecting into said hollow guide,- a contact strip in said guide having a yield ing su'rfaceadapted to engage a side of the margin of said plate, another` contact strip adapted to engage the edge of said plate, backing strips to which saidcontact strips are secured, and manually operable means -or moving said backing strips bodily toward and from said plate.

5. The combination with a window casing having a hollow guide, of a' platehav- 115 ing;` a margin project-ing intovsaid hollow guide, contact strips having *"elding surfaces adapted to engage the opposite :sides and edge of the margin of said plate, backing strips to wliiehf'said contact strips are 120 secured` inclined links disposed ina plane transverse to the plate and pivotally 'supporting said strips, cooperating cam surfaces on said marginal backing strip and a wall of the casing, respectivelyspring means normally exerting a longitudinal thrust upon said backing strips whereby the contact sti-ips carried thereby are causedl to -said casing, whereby the strips are nory plate to be moved in a vertical the action of said springv whereby the holding eect of said contact strips isfrelieved.

6. The combination with a window casing `having a hollow guide, of a platehaving a margin projecting into said guide contact strips engaging the opposite sides of said plate, inclinedlinks disposed in a plane transverse to the plate and pivotally supporting said strips, spring means' for actuating said strips located below the sill of mally kept in engagement with said plate, and means' for releasing the spring pressure on said Contact strips, thereby enabling said plate to be ;moved ina vertical plane, substantially as described. v

7. The combinat-ionwith a window casing having a hollow guide, of a plate having a marginprojectin into said easing, a pair of contact. strips a apted to engage opposite `'surfaces of Said plate, a link connecting each .of said strips with the window casing, a

- said plate, a link associated with each strip connecting the same with said casing, a transverse member between said. strips, an auxiliary contact strip'within said guido and ladapted `to engage the edge of 'said plate andv having slotted engagement with said links, spring mean'l engaging. said transverse member, whereby."saidcontactstrips are forced against opposite surfaces and the 1 edge of said plate respectively, and means for releasing said springI means, thereby loosening the engagement of sald strips with said plate, whe] eby the plate may be moved v Loiseau in a' vertical scribed.

9. The combination with a window casing, having a guide, of a plate-having a margin projecting into said guide, and movable contact means adapted to engage said plate and hold the latter in adjusted positiomsaid contact means comprising a contact strip surrounded by a tube of llexible material, a backing strip, and means for removably securing said contact strip to said backing strip, substantially as described.

10. The combination with a window casing, and a plate slidably mounted therein, of a frame for said plate fixed against movement with the plate and comprising a pair of strips mountedy'within the casing one on each side of thel plate for movement in planes at substantially right angles to the plane, substantially as dcplane of the plate, resilientmeans pressing the strips from opposite directions into contact with the marginal side lfaces of the plate, and manually operable means toretract the strips from contact with th'e plate, substantially as described.

11. The combination with a window casing, and a plate slidably mounted therein, of a-frame for said plate fixed against movementwith the plate and comprising a pair of strips mounted within' the easing one on each side of the plate for movement in planes at substantially right angles to the plane of the plate, resilient means pressing the strips from opposite directions into contact with the marginal side :faces of the plate, another strip mounted for movement in the plane of the plate, resilient means pressing the last named strip into Contact with the edge of the plate, and manually operable means to retract the strips in unison from Contact with the plate, substantially as described.

GEORGE H. FORSYTH. Witnesses:

SAMUEL N. POND, Fnnnnmcii C. GoonwiN. 

